package aop;

import java.util.Arrays;
import org.apache.log4j.Logger;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;

/**
 * 提取的公共日志代码
 */
@Aspect
public class UserServiceLogger {
    private static final Logger log=Logger.getLogger(UserServiceLogger.class);

    /**
     * 前置增强代码
     * @param jp
     */
    @Before("execution(* service.UserService.*(..))")
    public void before(JoinPoint jp){
        log.info("调用"+jp.getTarget()+"的"+jp.getSignature().getName()+"方法。方法入参:"+ Arrays.toString(jp.getArgs()));
    }

    /**
     * 后置增强代码
     * @param jp
     */
    @AfterReturning(pointcut = "execution(* service.UserService.*(..))",returning = "returnValue")
    public void afterReturning(JoinPoint jp, Object returnValue){
        log.info("调用"+jp.getTarget()+"的"+jp.getSignature().getName()+"方法。方法返回值:"+returnValue);
    }

}
